Name: Simplicispira psychrophila (Terasaki 1973) Grabovich et al. 2006

Category: Species

Proposed as: comb. nov.

Basonym: "Spirillum psychrophilum" Terasaki 1973

Etymology: psy.chro’phi.la. N.L. fem. adj. psychrophila, cold-loving

Pronunciation (Latin), gender: sim-pli-ki-SPI-ra psy-K^HRO-p^hi-la, feminine

Type strain: ATCC 33335; DSM 11588; IFO 13611; LMG 5408; NBRC 13611

See detailed strain information at

Conduct genome-based taxonomy at

16S rRNA gene: AF078755 Analyse FASTA

Valid publication: Grabovich M, Gavrish E, Kuever J, Lysenko AM, Podkopaeva D, Dubinina G. Proposal of Giesbergeria voronezhensis gen. nov., sp. nov. and G. kuznetsovii sp. nov. and reclassification of [Aquaspirillum] anulus, [A.] sinuosum and [A.] giesbergeri as Giesbergeria anulus comb. nov., G. sinuosa comb. nov. and G. giesbergeri comb. nov., and [Aquaspirillum] metamorphum and [A.] psychrophilum as Simplicispira metamorpha gen. nov., comb. nov. and S. psychrophila comb. nov. Int J Syst Evol Microbiol 2006; 56:569-576. 🇷🇺

IJSEM list: Euzeby JP. Notification list. Notification that new names and new combinations have appeared in volume 56, part 3 of the IJSEM. Int J Syst Evol Microbiol 2006; 56:1181-1182.

Nomenclatural status: validly published under the ICNP

Taxonomic status: correct name (and explicitly recommended for medical use)

Risk group: 1

• Synonyms:

  • Name	Kind
    "Spirillum psychrophilum" Terasaki 1973	homotypic synonym, not validly published, basonym of name in Approved Lists
    Aquaspirillum psychrophilum (Terasaki 1973) Terasaki 1979 (Approved Lists 1980)	homotypic synonym, validly published under the ICNP

• Notes:
  • 😢 The terminology used by the authors is in line with many other taxonomic studies and does not negatively affect their main results; some improvements may nevertheless be possible. Contrasting the term "chemotaxonomic" with "phenotypic" is not recommended. Using the term "phylogenetic data" (or equivalent) for sequence data is not advocated. See the LPSN phylogeny page for details. Publication: Göker M. What can genome analysis offer for bacteria? In: Bridge P, Smith D, Stackebrandt E (eds), Trends in the systematics of bacteria and fungi, CAB International, Wallingford, 2021, p. 255-281. 🇬🇧
  • 🧬 The phylogenomic assignment score of this taxon is 0.04079 (N = 31).
  • 😷 The risk group for Canada has been imported on 2024-02-27. The full classification is: risk group = 1, note = "Animal classification RG: 1 - Security sensitive biological agent: No - Terrestrial animal pathogen under Canadian Food Inspection Agency authority: No - Containment level: Containment Level 1". — The risk group for Germany has been imported on 2026-08-13. The full classification is: risk group = 1. — If in doubt, use the risk group given in the regulations for your country and, if these are not available, use the risk group given in the catalogue of the culture collection from which you have obtained or intend to obtain the strain.
  • 🎓 Name mentioned 5 times in PubMed until 2026-06-11.
  • 🙆 This name is on the List of Recommended Names for bacteria of medical importance (LoRN) as the name to be applied to this species. The name is on LoRN because of the recorded risk group of the genus.
  • 🧍 The genome of the type strain was sequenced as part of the GEBA (Genomic Encyclopedia of Bacteria and Archaea) project. Publication: Mukherjee S, Seshadri R, Varghese NJ, Eloe-Fadrosh EA, Meier-Kolthoff JP, Goker M, Coates RC, Hadjithomas M, Pavlopoulos GA, Paez-Espino D, et al. 1,003 reference genomes of bacterial and archaeal isolates expand coverage of the tree of life. Nat Biotechnol 2017; 35:676-683. 🇺🇸

Parent taxon: Simplicispira Grabovich et al. 2006

Assigned by: Grabovich M, Gavrish E, Kuever J, Lysenko AM, Podkopaeva D, Dubinina G. Proposal of Giesbergeria voronezhensis gen. nov., sp. nov. and G. kuznetsovii sp. nov. and reclassification of [Aquaspirillum] anulus, [A.] sinuosum and [A.] giesbergeri as Giesbergeria anulus comb. nov., G. sinuosa comb. nov. and G. giesbergeri comb. nov., and [Aquaspirillum] metamorphum and [A.] psychrophilum as Simplicispira metamorpha gen. nov., comb. nov. and S. psychrophila comb. nov. Int J Syst Evol Microbiol 2006; 56:569-576. 🇷🇺

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Record number: 780931